JLG 660SJ ANSI Service Manual - Manual (Page 89)

SECTION 3 - CHASSIS & TURNTABLE
3120718 – JLG Lift – 3-35
25. The spring has additional pretension while you dis-
assemble the three pressure pins inside the cylinder.
Assembly Notes
1. Measurement of the taper roller bearing pretension.
2. Note that there is a correct connection of the piston
rod and the swash plate.
3. Pumps clockwise driven must have a position to the
valve plate 4 degrees out of center in the same
direction de-centered like drive direction. (Note
spare parts exist as cw and ccw valve plates.)